Given below are four jumbled sentences. Select the option that gives their correct order.
A. Only the fittest creatures can survive while competing for food.
B. Why do some species survive and others become extinct?
C. His answer wasthat there is ceaseless struggle for life among all creatures.
D. This was the question that Darwin asked himself.

A

BCDA

B

ADCB

C

BDCA

D

ABDC